Overview
- The Los Angeles County Medical Examiner found Johnson, 55, died from blunt head trauma and stab wounds and classified the case as homicide.
- He was discovered unconscious Wednesday at a homeless encampment in Los Angeles County and was pronounced dead at the scene.
- Investigators say he had been residing at the encampment, and friends described health problems late in his life that contributed to his circumstances.
- The case remains under active investigation, and authorities have not announced any arrests.
- Johnson was a former defensive lineman for the Patriots, Vikings, Raiders and Eagles, and the Raiders issued a public message of condolence.